The diagram
Every HTTP response is a decision.
Send a request from the rail, or call this page's live URL with curl, and watch the flowchart decide the status one question at a time.
WebMacha sandbox
The resource no longer exists here, but it used to (K7), and it knows where it went for good (K5). The machine answers 301 with a Location header pointing at the new home.
Decision flow
Decision path
Send a request to see its path through the machine.
Request log
No requests yet. Simulated and live requests appear here; select one to replay it.